generator use cost connecticut


Natural disasters and emergencies can strike at any time  during any season. To protect yourself from a sudden loss of power, having a generator on hand is essential.  But to keep your home up and running, you’ll need to pay special attention to the fuel that powers your generator.

In this article, we’ll go over the types of generators available on the market, how powerful your generator should be, and how much fuel you can expect to use.

Types of Generators

The most common types of generators for homeowners are:

What kind of gas does a generator use?

With the exception of the inverter generator, which uses an engine and an alternator to create AC power, most generators run off these four fuels:

You might also consider bi-fuel or tri-fuel generators that run on gasoline or liquid propane (or natural gas for a tri-fuel.)

What appliances will you power? 

The exact amount of fuel you’ll use with vary based on the number of appliances you have connected to your generator. To start customizing your calculations, learn how much energy each of your home appliances requires.

Analyze the chart below to get a baseline for the size of the generator you’ll need, which will help us solve the amount of fuel you’ll need. 



AC central


Coffee maker (2 cups)




Electric Range (medium size)




Refrigerator (large)


Living Room Lights


Television (new technology)


Gas Washer


Gas Dryer


Garage Door


By adding the watts of the appliances you’ll most often use, you’ll have a better understanding of what size generator you need.

Cheat Sheet: The average homeowner will most likely use a generator between 3,000 and 6,500 watts to effectively run their home appliances, which is a 3-6.5 kilowatt generator. 

How much does it cost to run a generator? 

The next step to learning how much gas your generator will use is to assess how each type of generator burns fuel at different rates.

Here is a rough estimate of how much it will cost to fuel a generator, by varied fuel types:

Gasoline generator

Diesel generator 

Propane generator

Natural gas generator

How to Keep Costs Down 

Regardless of the type of fuel you use for your generator, there are several ways you can cut your fuel costs: